公开(公告)号：US10776285B2

公开(公告)日：2020-09-15

申请号：US15977379

申请日：2018-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Keji Huang

IPC: G06F12/00 ,  G06F12/14 ,  G06F3/06 ,  G06F9/52

Abstract: In an active-active system, if write lock permission is granted to a second storage array, a first storage array sends to-be-written data and a lock revocation request together to a lock server; the lock server sends a lock revocation request carrying the to-be-written data to the second storage array; after storing the to-be-written data, the second storage array sends a lock revocation success message to the lock server; the lock server gives the write lock permission to the first storage array; and the first storage array obtains the write lock permission and stores the to-be-written data.

公开(公告)号：US10715367B2

公开(公告)日：2020-07-14

申请号：US16518574

申请日：2019-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi Zhang ,  Minghui Xu ,  Lei Chen

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/20

Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.

公开(公告)号：US10615933B2

公开(公告)日：2020-04-07

申请号：US16118657

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Rong Wen ,  Lei Chen

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: Embodiments of the present disclosure provide systems, methods and apparatus for reference signal configuration. The method includes: mapping a phase tracking reference signal (PTRS) to one or more OFDM symbols based on information about a correspondence between the PTRS and one or more of a modulation and coding scheme (MCS), a subcarrier spacing, and a bandwidth (BW); and sending the one or more OFDM symbols to which the PTRS is mapped to a receive device. In the embodiments of the present invention, a correspondence between the PTRS and the subcarrier spacing or the modulation and coding scheme or the bandwidth is used to implicitly indicate a time-frequency location of the PTRS. In comparison with the prior art, no explicit indication is required, and signaling overheads are reduced.

公开(公告)号：US10403237B2

公开(公告)日：2019-09-03

申请号：US15618754

申请日：2017-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Chen

IPC: G09G5/14 ,  G09G5/12 ,  G09G5/399 ,  G06F3/14 ,  G09G5/39

Abstract: A processing method and device for multi-screen splicing display are disclosed. The method includes: receiving instruction information for multi-screen splicing display, where the instruction information is used to instruct to splice at least two physical display screens for display; sending, according to the instruction information, display data to a video RAM of a virtual display screen formed by splicing the at least two physical display screens, where a size of the video RAM of the virtual display screen corresponds to a size of the virtual display screen; dividing the display data into at least two data blocks that correspond to sizes of the at least two physical display screens, and respectively sending the data blocks obtained by division to video RAMs of corresponding physical display screens.

公开(公告)号：US10382980B2

公开(公告)日：2019-08-13

申请号：US15605613

申请日：2017-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Yan ,  Lei Chen

IPC: H04W24/02 ,  H04W74/00 ,  H04B17/336 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L1/20

Abstract: The present invention relates to the field of mobile communications technologies, and in particular, to a signal transmission method, and an apparatus. In this solution, a technical feature of sending, to a receive end, an alternative transmission configuration corresponding to a selected first CQI is used. In this technical feature, the alternative transmission configuration sent to the receive end is an alternative transmission configuration corresponding to the selected first CQI. The technical feature can overcome disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in a signal transmission process. Therefore, the present invention can overcome the disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in the signal transmission process.

公开(公告)号：US20180367277A1

公开(公告)日：2018-12-20

申请号：US16118657

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Rong Wen ,  Lei Chen

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: Embodiments of the present disclosure provide systems, methods and apparatus for reference signal configuration. The method includes: mapping a phase tracking reference signal (PTRS) to one or more OFDM symbols based on information about a correspondence between the PTRS and one or more of a modulation and coding scheme (MCS), a subcarrier spacing, and a bandwidth (BW); and sending the one or more OFDM symbols to which the PTRS is mapped to a receive device. In the embodiments of the present invention, a correspondence between the PTRS and the subcarrier spacing or the modulation and coding scheme or the bandwidth is used to implicitly indicate a time-frequency location of the PTRS. In comparison with the prior art, no explicit indication is required, and signaling overheads are reduced.

公开(公告)号：US20180310322A1

公开(公告)日：2018-10-25

申请号：US16022309

申请日：2018-06-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xi Zhang ,  Lei Chen ,  Mao Yan

IPC: H04W72/08 ,  H04J3/16 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/085 ,  H04B7/0602 ,  H04J3/1694 ,  H04L5/00 ,  H04L5/0023 ,  H04W72/048 ,  H04W72/1273 ,  H04W72/1289

Abstract: The present disclosure provides a downlink data transmission method, including: using a time-division multiplexing transmission mode in one transmission time interval; sending, by using a wide beam, a control signal to a user served in the current transmission time interval; and grouping users and sending data signals to different user groups by using different narrow beams. In one transmission time interval, time-division multiplexing is used, and a wide beam and a narrow beam are respectively used to transmit a control signal and a data signal. This can avoid a throughput bottleneck resulting from use of a transmission scheme that is based on frequency-division multiplexing only.

公开(公告)号：US10050684B2

公开(公告)日：2018-08-14

申请号：US15604387

申请日：2017-05-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daiming Qu ,  Jun LI ,  Tao Jiang ,  Lei Chen

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B15/00

Abstract: The present invention provides an FBMC transmit diversity transmission method and apparatus. The method includes: obtaining a to-be-transmitted data sequence, where the to-be-transmitted data sequence includes 2*M*N pieces of data; performing transmit diversity processing on the to-be-transmitted data sequence to obtain FBMC signals of a first antenna and a second antenna, where a precoding matrix is (I) or (II), a matrix that includes the FBMC signals of the first antenna and the second antenna is (III), a matrix that includes the to-be-transmitted data sequence is (IV), 0≤i≤M−1, 0≤j≤N−1, Y=WX, the 2*M*N pieces of data of the to-be-transmitted data sequence are denoted by x(0)(k,l) and x(1)(k,l), 0≤k≤M−1, 0≤l≤N−1, FBMC signals of the first antenna and the second antenna on an rth subcarrier and an sth symbol are denoted by y(0)(r,s) and y(1)(r,s), 0≤r≤2M−1, and 0≤s≤N−1; and transmitting the FBMC signals of the first antenna and the second antenna.

公开(公告)号：US09974026B2

公开(公告)日：2018-05-15

申请号：US15544823

申请日：2015-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen

IPC: H04W52/02 ,  H04B1/38 ,  H04M1/02 ,  H04B1/3888

CPC classification number: H04W52/0254 ,  G06F1/1628 ,  G06F1/1677 ,  G06F3/041 ,  G06F3/048 ,  H04B1/3888 ,  H04M1/0202 ,  H04M1/24 ,  H04M1/725 ,  H04M2250/12 ,  Y02D70/122 ,  Y02D70/126

Abstract: The present invention provides a terminal control method and a terminal, and relates to the field of electronic devices. The method includes when a magnetic field sensed by a Hall device of a terminal in a standby state is less than or equal to a first preset threshold, activating a sensor of the terminal, where the Hall device is configured to sense a magnetic field generated by a magnet in a protective case of the terminal. The method also includes obtaining, by using detection data of the sensor, whether the terminal is obstructed, and maintaining the standby state of the terminal when it is obtained that the terminal is obstructed. The method and the terminal provided in the present invention are applied to the terminal.

公开(公告)号：US09935745B2

公开(公告)日：2018-04-03

申请号：US14831652

申请日：2015-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Chen ,  Lei Min ,  Dan Wu

IPC: H04L25/03 ,  H04L5/00 ,  H04B7/04 ,  H04J11/00 ,  H04B7/0452 ,  H04B7/0413 ,  H04B7/06 ,  H04L27/26

CPC classification number: H04L5/0026 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0482 ,  H04B7/068 ,  H04J11/003 ,  H04L27/264

Abstract: The present invention provides a signal sending method and a signal sending device, where the signal sending method includes: canceling interference from symbols of a boundary between at least two precoding code blocks in a multiple input multiple output filter bank multicarrier MIMO-FBMC system, where the precoding code block includes at least one time-frequency resource element that uses same precoding; performing precoding on a to-be-sent symbol in the precoding code block to obtain a precoded symbol; and sending the precoded symbol. In the present invention, mutual interference between precoding code blocks at a time-frequency critical location can be completely or partially canceled.